Home / 1,315,708.08-1,815,692.30-771,853.14

Finding the Fourth Proportional to 1,315,708.08, 1,815,692.30 and 771,853.14

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Solution

The fourth proportional to 1,315,708.08, 1,815,692.30 and 771,853.14 is: 1,065,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,708.08 : 1,815,692.30 = 771,853.14 : x
  2. Step 2: Convert to fraction form
    1,315,708.08/1,815,692.30 = 771,853.14/x
  3. Step 3: Cross multiply
    1,315,708.08x = 1,815,692.30 × 771,853.14
  4. Step 4: Simplify right side
    1,315,708.08x = 1,401,447,803,028.82
  5. Step 5: Solve for x
    x = 1,401,447,803,028.82/1,315,708.08
  6. Step 6: Final answer
    x = 1,065,166.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.